Yes
if x=2 and y=2, then x=y
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There is one solution for x and one solution for y. The solution is: x = -1 ; y = 2
x = -3, y = 7
x = 1 and y = 2
There are infinitely many "solutions". In the Cartesian plane, the coordinates of any point on the line defined by y = x + 2 is a solution. Thus, any ordered pair, (x, x+2) is a solution.
x-y=6x=y+2Substitute y+2 for x in the 1st equation:(y+2) - y = 62=6Since this is false, there is no answer (the two lines are parallel)